<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./vue@3.5.13.js"></script>
</head>
<body>
    <div id="app">
        <button @click="count--">-</button>
        <div>{{ count }}</div>
        <button @click="count++">+</button>
    </div>
    <script>
        const { createApp, onBeforeMount, onMounted, onBeforeUpdate,onUpdated,onBeforeUnmount,ref } = Vue
        createApp({
            setup(){
                let count = ref(100)
                onBeforeMount(() => {
                    console.log("在挂载之前");
                    
                })
                onMounted(() => {
                    console.log("在挂载之后");
                    
                })
                onBeforeUpdate(() => {
                    console.log("在数据更新之前");
                    
                })
                onUpdated(() => {
                    console.log("在数据更新之后");
                    
                })
                onBeforeUnmount(() => {
                    console.log("在页面销毁之前");
                    
                })
                return { count }
            }
        }).mount("#app")
    </script>
</body>
</html>